Robtex

Up: 177.66.170.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 177.66.171.0/25
Down right: 177.66.171.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.66.171.101	PTR	dmsdc1aptcpl01.ded.inetweb.com.br
177.66.171.101	A	gulfdobrasil.com.br
177.66.171.101	A	terradan.com.br
177.66.171.102	PTR	ns2.dmsdc1aptcpl01.ded.inetweb.com.br
177.66.171.102	A	ns2.aptaweb.net